ASTROSAT CZTI

Data Quality Report

Orbit 28301

Creation date: 2024-06-27T19:50:14.181239
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_102T10_9000004080_28301cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28301cztM0_level2_quad_clean.evt
Size (bytes)237,228,48032,132,160
Size226.2 MB 30.6 MB
Events in quadrant A1,909,825175,839
Events in quadrant B1,746,783193,591
Events in quadrant C1,582,240190,287
Events in quadrant D1,709,739168,758

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076260
B072280
C067570
D071770

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075
B074
C085
D087

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3161371.170516%
B3257571.750077%
C3299361.091240%
D3161341.075609%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7346 3628 14 14 0.19% 0.39%
B 7346 3735 25 25 0.34% 0.67%
C 7604 3787 0 0 0.00% 0.00%
D 7556 3663 16 16 0.21% 0.44%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 174 422348 5358.54 385 377 78.7
A 13 254 5690 67.47 385 377 78.7
A 3 137 3737 42.67 385 377 78.7
B 10 245 164057 2179.63 390 380 75.1
B 4 200 35790 471.54 390 380 75.1
B 12 111 8869 113.05 390 380 75.1
C 14 238 61794 685.16 382 384 89.6
C 3 233 28443 313.06 382 384 89.6
C 13 61 2665 25.45 382 384 89.6
D 8 195 99347 1109.47 369 358 89.2
D 2 250 78045 870.72 369 358 89.2
D 2 82 50039 556.83 369 358 89.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter